Discussion Post
a) How has the system of transportation evolved over the years?
b) What costs have changed and why have they changed?
c) What philosophies have guided its development? Have things been changing recently?
d) How is this system likely to evolve in the coming years?
The response should include a reference list. Using one-inch margins, Times New Roman 12 pnt font, double-space and APA style of writing and citations.